NDLI: Effect of Regenerative Load on a Static Transfer Switch Performance

Content Provider	IEEE Xplore Digital Library
Author	Mokhtari, H. Dewan, S. B. Iravani, M. R.
Copyright Year	1981
Abstract	A thyristor-based static transfer switch (STS) is used to connect an alternate source of ac power to a sensitive load when the main source fails. A main criterion for performance evaluation of an STS is the transfer time from the main to the alternate source. The transfer time depends upon the commutation process of the outgoing and incoming switches, which in tum depends on the system parameters and the load characteristics. This paper investigates the effect of a regenerative load on the transfer time/total load-transfer time of an STS and identifies the worst-case scenario(s) in which maximum transfer time occurs. The IEEE STS benchmark models STS-1 and STS-2 are chosen to demonstrate the STS performance under various fault/disturbance conditions in a medium-voltage distribution system and a low-voltage experimental set-up system. The simulations are performed using the PSCAD/EMTDC package. The paper shows that a hybrid load can operate in regenerative mode depending on the load parameters and fault/disturbance characteristics.
Starting Page	62
Ending Page	62
Page Count	1
File Size	292969
File Format	PDF
ISSN	02721724
Volume Number	21
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-08-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Switches Power system harmonics Sociotechnical systems Voltage control Sulfur hexafluoride Circuit breakers HVDC transmission Equations Load flow control Power system modeling UPS systems Power quality bus transfer sensitive loads static transfer switch
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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